Pretty cool
I spent quite a lot of time on this because I can do it while doing work when the sound is off, so I feel I ought to review by now (I've completed it entirely).
Firstly, it is a good game, if a little luck based. When watching a battle I was sometimes cringing at how some were wondering off while a weaker one was getting pummelled nearby. The first one you encounter with the two plasma laser things is far too hard, you have to pray that any healer you might have equiped stays back, and not only that but once they've stayed back not go through the gap between the others. Some serious changes to the AI should be made so the user can select how the robot decides who to fire at out of who is in range. Plus, a little more work on how they drive towards the opponent is needed, so that they don't sit behind a fallen bot or wonder the wrong direction. Maybe a little mouse interaction could be done, so that the nearest bot follows your mouse when it's held down.
Another thing that irritated me was how some opponents simply had weapons you could only dream of. They should be more tactical as you go along, rather than simply much more powerful than you. Some guidance as to what you're going to be up against so you can plan accordingly would be good too, rather than wasting 5000 to find out you're against something that it'll take a lot of luck to beat.
Those are just niggles though, as a general this game is well made and good. Just the utter lack of control during battles, not even tactically, means this needs some better AI.
Someone else mentioned having the game keep crashing around level 4, well that happened to me too, I found going to it's mirror on gamegecko stopped it doing it entirely.